<html>
<head>
	<meta charset="UTF-8">
	<meta content="IE=edge" http-equiv="X-UA-Compatible">
	<meta content="initial-scale=1.0, maximum-scale=1.0, user-scalable=no, width=device-width" name="viewport">
	<title>4042：[Cerc2014] parades</title>
	<!-- css -->
	<link href="../css/base.min.css" rel="stylesheet">
	<link href="../css/project.min.css" rel="stylesheet">
	
	<!-- favicon -->
	<!-- ... -->
</head>
<body class="page-brand">
	<header class="header header-transparent header-waterfall ui-header">
		<ul class="nav nav-list pull-left">
			<li>
				<a data-toggle="menu" href="#menu">
					<span class="icon icon-lg">menu</span>
				</a>
			</li>
		</ul>
		<a class="header-logo header-affix-hide margin-left-no margin-right-no" data-offset-top="213" data-spy="affix">[Cerc2014] parades</a>
		<span class="header-logo header-affix margin-left-no margin-right-no" data-offset-top="213" data-spy="affix">[Cerc2014] parades</span>
	</header>
	<nav aria-hidden="true" class="menu" id="menu" tabindex="-1">
		<div class="menu-scroll">
			<div class="menu-content">
				<a class="menu-logo" href="../index.html">BZOJ离线题库</a>
				<ul class="nav">
					<li>
						<a class="waves-attach" data-toggle="collapse" href="#problems">题目</a>
						<ul class="menu-collapse collapse in" id="problems">
							<li>
								<a class="waves-attach" href="../index.html">主页</a>
							</li>
							<li>
								<a class="waves-attach" href="../list.html">题目列表</a>
							</li>
						</ul>
					</li>
					<li>
						<a class="collapsed waves-attach" data-toggle="collapse" href="#about">关于</a>
						<ul class="menu-collapse collapse" id="about">
							<li>
								<a class="waves-attach" href="../about.html">关于此项目</a>
							</li>
						</ul>
					</li>
					
				</ul>
			</div>
		</div>
	</nav>
	<main class="content">
		<div class="content-header ui-content-header">
			<div class="container">
				<h1 class="content-heading">
                [Cerc2014] parades                </h1>
                <p>时间限制：10s&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  空间限制：128MB</p>			</div>
		</div>
		<div class="container">
			<section class="content-inner margin-top-no">
				<div class="row">
					<div class="col-lg-13 col-md-13">
						<div class="card margin-bottom-no">
							<div class="card-main">
								<div class="card-inner">
									
                                <h3>题目描述</h3><p><div>In The City of Eternal Festivities, there are n street junctions and n - I bidirectional streets,eac</div>
<div>h street connecting two of the junctions. Between every two junctions, there is exactly one(direct o</div>
<div>r indirect) path connecting them. No junction is an endpoint for more than 10 streets.Every 13th of&nbsp;</div>
<div>September (the 256th day of the year), there are many festivities going on inThe City. In particular</div>
<div>, the citizens want to organize m parades. The parade number 7; starts atjunction ui and ends at vi,</div>
<div>&nbsp;following the unique path between the endpoints.As the mayor of The City, you are responsible for c</div>
<div>itizens' safety. Therefore you decreed thatno two parades are ever allowed to use the same street, t</div>
<div>hough they can have common junctions,or even common endpoints.To appease your citizens, try to organ</div>
<div>ize as many parades as possible, without breaking thesafety regulations.</div>
<div>一个树，d(v)&lt;=10，给定m条path，找出最多不共边的path，不需要方案。&nbsp;</div>
<div>n&lt;=1000,m&lt;=总路径数</div>
<div></div>
<div></div>
<div></div>
<p></p></p><hr/><h3>输入格式</h3><p><div style="font-size: 11.8181819915771px;">The first line of input contains the number of test cases T. The descriptions of the test cases&nbsp;</div>
<div style="font-size: 11.8181819915771px;">follow:&nbsp;</div>
<div style="font-size: 11.8181819915771px;">The first line of each test case contains a single integer: the number of junctions n (2《 n&le;1000).</div>
<div style="font-size: 11.8181819915771px;">&nbsp;Each of the next n - I lines contains two integers a, b (1《 a&ne; b&le; n), denoting thatjunctions a a</div>
<div style="font-size: 11.8181819915771px;">nd b are connected by a street. Each junction has at most 10 streets leaving it.The next line contai</div>
<div style="font-size: 11.8181819915771px;">ns a single integer: the number of planned parades m, 0&le; m &lt;(彩.Each of the next m lines contains t</div>
<div style="font-size: 11.8181819915771px;">wo integers ui, vi (1&le; ui&ne; vi&le;n), meaning that a parade isplanned to start at junction ui, and fi</div>
<div style="font-size: 11.8181819915771px;">nish at junction vi. No two parades share both endpoints.</div>
<div style="font-size: 11.8181819915771px;"></div>
<div></div>
<div>
<div></div>
</div>
<p></p></p><hr/><h3>输出格式</h3><p><div style="font-size: 11.8181819915771px;">For each test case, output one line containing the largest number of parades that can beorganized wi</div>
<div style="font-size: 11.8181819915771px;">th no street used bv more than one parade.</div>
<div style="font-size: 11.8181819915771px;"></div>
<div></div>
<div>
<div></div>
</div>
<div>
<p></p>
</div></p><hr/><h3>样例输入</h3><pre>1
6
1 2
2 3
3 4
3 5
3 6
4
1 3
4 5
5 6
6 4</pre><hr/><h3>样例输出</h3><pre>2</pre><hr/><h3>提示</h3><p>没有写明提示</p><hr/><h3>题目来源</h3><p>没有写明来源</p>
								</div>
							</div>
						</div>
					</div>
				</div>
				
				
			</section>
		</div>
	</main>

	<div class="fbtn-container">
		<div class="fbtn-inner">
			<a class="fbtn fbtn-lg fbtn-brand-accent waves-attach waves-circle waves-light waves-effect" data-toggle="dropdown" aria-expanded="true"><span class="fbtn-text fbtn-text-left">Menu</span><span class="fbtn-ori icon">apps</span><span class="fbtn-sub icon">close</span></a>
			<div class="fbtn-dropup">
				<a class="fbtn fbtn-brand waves-attach waves-circle waves-light waves-effect" href="../list.html" target="_self"><span class="fbtn-text fbtn-text-left">题目列表</span><span class="icon">menu</span></a>
				<a class="fbtn fbtn-green waves-attach waves-circle waves-effect" href="../index.html" target="_self"><span class="fbtn-text fbtn-text-left">返回主页</span><span class="icon">home</span></a>
				<a class="fbtn waves-attach waves-circle waves-effect" href="http://www.lydsy.com/JudgeOnline/submitpage.php?id=4042" target="_blank"><span class="fbtn-text fbtn-text-left">提交代码</span><span class="icon">send</span></a>
				<a class="fbtn fbtn-orange waves-attach waves-circle waves-effect" href="http://www.lydsy.com/JudgeOnline/wttl/wttl.php?pid=4042" target="_blank"><span class="fbtn-text fbtn-text-left">试题讨论</span><span class="icon">chat</span></a>
				
			</div>
		</div>
	</div>

	<!-- js -->
	<script src="../js/jquery.min.js"></script>
	<script src="../js/base.min.js"></script>
	<script src="../js/project.min.js"></script>
</body>
</html>